Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7540057 | Mop assembly having therein a rotatable device to allow a mop head to rotate relative to stick and a positioning device to allow the stick to be positioned when not in use | Ming-Che Ting | 2009-06-02 |